idea of a cost-no-subject, fully hornloaded speaker

[critofur]

Well, what frequency range will that portion of the speaker play in?

The bracing does look intelligently designed, and should be decent.

Test the speaker and place a microphone very close ( a few mm away) from the center of the space between braces and see if you detect a resonant peak in the cabinet.

Play the speaker with frequency sweeps at a fairly loud level and see if you feel resonances activated at certain frequencies.

If you will be playing at low frequencies then you may want to add a solid wood brace or two. The woofer will be mounted on the front?

It looks good, but you might find something needs improvement after you test it. On one speaker cabinet I designed it was surprising to find that 1/2 inch plywood was noticably superior to 3/4 inch plywood. Somehow the thicker plywood had worse resonances in that particular design.

The curved surface will help a lot, it's so much stiffer than the sides of a rectangular box, did you have that in mind when you designed it? Perhaps it is just a lucky side effect of your asthetic choice?

[angeloitacare]

hi Critofur

the bass will be crossed at 220hz 12db ore 24db. Yes, the woofer will be mounted on the front, also a rectangular port, 30cm deep. the walls are 30mm ( more than 1inch ) thick. To get good aesthetics was my main goal, beside to do it right to avoid resonances.

rds angelo